Metal-transfer apparatus.



PATENTED AUG. 27, 1907.

K. G. GARDNER. METAL TRANSFER APPARATUS.

APPLIOATION FILED MAR. 25. 1907.

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UNITED STATES PATENT OFFICE.

KIRTLAND G, GARDNER, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOUNITED ENGINEERING & FOUNDRY COMPANY, OF PITTSBURG, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

METAL-TRANSFER APPARATUS.

Specification of Letters Patent.

Patented Aug. 27, 1907.

To all whom it may concern:

Be it known that I, KIRTLAND O. GARDNER, of Pittsburg, Allegheny county,Pennsylvania, have invented a new and useful M etal-Transfer Apparatus,of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, forming part of thisspecification, in which Figure I is a partial plan view of a shear-tableprovided with my improved pusher mechanism, and Fig. 2 is a partialtransverse section of the same.

My invention relates to transfer mechanism of the type wherein pushersforce the metal sidewise on a table and are then released from the metalon the backward stroke. These pushers have ordinarily been moved in anorbital path, moving upward after the forward push, thence back at theupper level, and thence down to the lower or pushing level. Thisinvolves a complicated mechanism, and such devices are also liable toinjury by metal striking them as it is fed along the table. My inventionovercomes these difficulties, and it consists in providing the pusherhead with depending loose links or bars which are arranged to swingforwardly on the retraction of the head, and also sidewise in case theyare struck by another piece coming upon the table or support.

In the drawings, 2 represent the rollers of a table, which in this caseis a portion of a shear-table. These rollers may be driven or not, asdesired; or the table or support may be without rollers.

3 is the pusher head, which is in the form oi a cross head resting onthe guide 4, which is shown as overhanging the driving mechanism 5 forthe table rollers. The cross-head is preferably arranged above the levelof the upper surface of the metal fed upon the table; and may bercciprocated by any suitable connections shown in the present form ascomprising a rearwardly projecting rack 6, engaged by a pinion 7 on theshaft 8, which may be rotated through any suitable connections. Thecross-head is provided with upwardly projecting horizontal bearings 9,supporting projecting stub-shafts 10 whose iront ends are provided withcars 11, between which are pivoted the depending steel pusher bars 12,These pusher bars extend down below the level of the lower face of thecross head and into the path of the metal. The cross-head prevents themfrom swinging backwardly; and as the cross-head moves .l'orwardly theywill push the metal, indicated at 13, fonvardly on the rollers 2. Ifdesired the metal may be pushed off the side of the table, the pusherbars having preferably a range of movement between the dotted and fulllined positions a and a shown in Fig. 2. On the return stroke of thehead, the pusher bars will swing forwardly until they pass the metal,when they will drop down into operative position. If at any time anentering section of metal should strike the side face of any of thepusher bars, they will simply swing sidewise idly and thus avoid injuryto the apparatus.

The advantages of my invention result from the use of the pivoted pusherbars which are arranged to swing substantially at right angles to theirplane of movement; and also forwardly during retraction. This avoids theuse of complicated mechanism, and also prevents injury to the pusher bythe metal striking it while moving on the table.

Many changes may be made in the arrangement of the table or supports;the pusher head; the connections, and the mounting of the pusher bars toallow their swinging in planes at an angle to each other, withoutdeparting from my invention.

I claim:-

1. In a metal transfer mechanism, a pusher head, a pusher pin pivotedthereon and arranged to swing in dif ferent planes; said planes being atan angle to each other, and a stop device arranged to prevent backmovement of the pin in one direction; substantially as described.

2. In metal transfer apparatus, a table or support, a reciprocating headarranged to move across and over the table, pusher bars pivoted to thehead and arranged to swing in different planes, said planes being at anangle to each other, and a stop device arranged to prevent the barsswinging bnckwardly in one direction; substantially as described.

3. In metal transfer apparatus, a pusher head having a dependingswinging pusher liar mounted to swing sidewise as well as forwardly, thehead being arranged to prevent backward swinging of the bars;substantially as described.

4. In metal transfer apparatus, a table'or support, a horizontalreciprocating head supported at one side thereof and movable across andover the table. and a swinging pusher bar pivoted to the upper part ofthe head and depending below the level of the head, said head forming astop to prevent rearward swinging of the pusher bar; sub stnntinlly asdescribed A metal transfer apparatus, a table or support, a support atone side thereof, a reciprocating head on the latter support arranged tomove across and over the table, and a depending pusher bar pivoted to arock shaft mounted on the reciprocating head and arranged to swing in aplane at an angle to the plane oi. movement of the head; substantiallyas described.

In testimony whereof, I have hereunto set my hand.

KIRTLAND C. GARDNER.

